Assig



I. IJ. CRECEIIIIS.

RAIL BOND.

APPLICATION FILED IIIAY 3, Isls.

l 13335 5,4%@ Patemd Mam 3G), 192% 2 SHEETSMSHEET l.

.. P. CRECELIUS.

RAIL BOND,

APPUcATloN HLED MAY3.1916.

ijamnd Mam. 36h 192m 'ildlilli lessees.

Application filed 3, 1316.

To all wiwi/i 'it may concern.'

Be it known that l, lhiwnnncn P. CRE- cnLiUs, citizen ol" the United States, residing at Cleveland, in the county of Cuyahoga and Stute of Ohio, have inventedl a cerand useful lniprovelnent in llailtain new Bonds. of which the 'following is a full, clear, and exact description.

rl`his invention relates to rail bonds and has for one oit its objects to provide a rail bond which can be inade cheaply and which can be veri7 effectively braced to the rail so as to provide a joint which is satisfactory :troni both mechanical and electrical standpoints.

@ne of the nic-re specific objects is to forni the bond in such a way that both the con ductor and terminal sleeve surrounding the conductor will be brazed to the rail when the bond is applied thereto by the brazing apparatus.

Another one of the more speciiic objects is to provide a bond so constructed that the conductor of the bond and the terininal sleeve are mechanically held or pressed together but in such a manner that when the bond is brazed to the rail by suitable ineans such as by an electric brazin` machine inclnding` one or more heating electrodes, simultaneously the terminal sleeve is brazed to the conductor and both the conductor and terminal sleeve are brazed to the rail.

rlhe invention n iay be brie'lly summarized as consisting in certain novel details of con struction which will be described in the specii'ication and set 'forth in the appended claims.

ln the accompanying); sheet of drawings, wherein l have shown two embodiments of my invention, Figure l is a portion oi a stranded conductor which is provided at its ends with. terminals designed to be brazed to track rails; 2 shows two sic-e views and an end view oit a terminal sleeve adapted to be secured to one end of the conductor;

i5 is a side view and end view of a brazing; sleeve which is placed between the terminal sleeve and the conductor; Figi. 4 is a tace vie1 ot a strip ot brazing material which is designed to be fastened to the terininal v"for the purpose oit bran/.ing the conn dnctor and terminal sleeve to the rail; Fig. 5 is a view oi the assembled conductor, terminal sleeve and bracing; sleeve the sleeves beine' shown in section; Fig. 6 is an end Specification of .Letters Patent.

Patented Billar. 3), 1926 Serial No. 95,051.

view ci the saine; ligg. 7 is a view similar to 5 after the strip of bracing),` material ci" l is applied; S is a view showing the ssenibled conductors and parts of the terminal rib-ont to be shaped and to be secured together; Fig. is :inlenlar Ylace view oit the completed terminal mith the strip oi brazing material removed; l0 is a side view of the completed terminal; Fig. ll is an end view ot the saine. Figs. l2 to l5 are views oit parts which make 11p a niodi l torni of bond.y the parts shown in these iigijures corresponding` resgectivebT to the inner bracing sleeve, the outer tei-ininal sleeve. the strip of brazing material and the inain conductor oli the bond shown in the preceding igures. ll i6 shows an ci' ge and face view ci the terminal portion ci the bond alter the inner bracing sleeve or strip has been applied thereto; llig. l? shows similar views the outer terminal sleeve has been applied; Fig. 18 shows simi lar views after the strip of brazil/ig; material has been applied; and Fig. 19 shows respectively an edge view and a tace view of the completed bond.

Reierring` iirst to igs. l to l1 ot the drawings, l() represents portion of the stranded conductor on the ends oi which the terminals are adapted to be formed in the manner hereinafter described, and which in this instance is composed ol a group of twisted wires. ln 'forming' the terminal l slip onto the end oit the conductor l() two concentric sleeves. including' what l t terni an inner bra-zing sleeve ll and an outer terminal sleeve 1.2. the terminal. sleeve bein preferably formed oi' copper and the inner sleeve 11 being preferablv 'formed of brass or other materiel which inelts at a lower temperature than the slee e l2 and which will serve as a braze to bra/,ze the sleeve l2 to the conductor l() when the terminal of the bond is brazed to the rail. l't will be observed that the sleeve ll is provided with an open gap 1l entendinr;- throughout its length and that the sleeve' lf2 is provided with a slot l2 extendino the inni or portion oi the lenfth of the sleeve, and that when the sleeves are assembled on the end o'lf the conductor l() the ll ot the inner sleeve and the slot l2 ot the outer sleeve register so tl at a portion of the conductor is exposed on one tace or side of the terminal, as appears particularly trein Figs. 5 and 6. lt

,f concentric sleeves. l i

Je the terminal and ta,

25 they will not incidentally I3 rail and at the saine time tl (Se than the blazing strip 13 nielts Will be observed also that the inner bref/ling sleeve is Somewhat shorter than the outer terminal sleeve 12, the toriner extending from the end of the conductor snl'istantially to the end of the slotted portion 12L ot' the terminal sleeve.

l. next insert between the condnetor and the circular er nnslotted part ot the outer sleeve, the en (l ot a strip oit brazilie` material l() l-l which ine-lts at a lower teniperatnre ian the inner brazingj s1 fore .11. this sti in; arranged opposite the exposed the conductor. l/. fr.. the part which Blite or exposed through the grr-.n in rthe parts are shown in Fig. 7.

To complete he terminal, the assembled parte` are cold pref-sed between two dies 14E and 15 ot a ,so-called bulldozer which shapes tens er se lares the parts together. By tinstening the parts together l inean that the elements are not YForged together in Vthe trne sense et the terni, but are merely pressed to ther in sneh a Way that slip on" the end et the conductor. The dies et the bulldozer are so shaped that when the terminal is struck by the dies. the terniinal is provided with a flattened portion 1U and with a hub 1T consisting ot the substantially circular inislotted end et die terminal sleeve and the portion ot the conductor 10 which eX- tends through it. ln flattening or shaping the terminal 16 therx is Ytorieied a dat inner :z tace 18 which Vis adapted to be brazed to the n or inner 'fare 18. This side or Ytace 1S o'i the terminal covered or over-.aid by the pro- Nierting portion ot' the bra/Line` strip 13, as

slm "n in Fins. and 11.

Although prior to brazilie' the bond to the rail the parts oi the termina are not 'inte- 'g'ralljj/ or intiaat-eh,v unitef1 the bond i. when brazed to i, preferably by eleetrical apparatus. including one er more high re- Lstance heating' electr. flerd to be pressed api or tace ot the termina razslip will be ieltf l7 ln'arf. both the conductor and the lo the 'ial iileeyf inner `=3=razing sleeve 11 which melts at a somewhat higher temperature than the brazing strip 1?), but which is closer to the heating;Y electrodes. and is, there'lore, snbjeeted to inore heat and brazes the terminal sleeve to the conductor.y thus "forming` a substantially solid body with both the conductor and the terminal sleeve intimately secured together and both intimately secured to the rail.

@n Sheet 2 ot the drawings l hare shown a bend the eondnetor ot' which is of the ribbon type, and which is provided with terrainals termed in the sani-e manner as previously explained7 this sheet ot the drawings showing also the fa rions stages or steps ol the niethod oi producing;` the bend. As shown in Fig. 157 the conductor 20 or niain portion of the bond is torined of a plurality of layers ot a ribbon or series et ribbons, which are pret'- erablyv el copper, the layers being arranged taee to tace. For each terminal ot the ribbon. conductor shown in Fig. l employ a terminal sleeve :'21 which is preferably termed troni a hat strip ot copper or other snitable conductingx niateria] shown in Fig. 13, and an intervening strip or sleeve of bra/'zing material., sach as brass, which is desifned to brazo the enter sleeve 21 to the ribbon conductor 2l), this inner sleeve or layer ot' brak/ring material being preferably Ytin-ined troni a fiat piece ot' metal shown in Additionally, l einploy a strip 23 et bre-.Zing inaterial shown in Flo'. 1l, whit-l as in the First instance, is designed to brazo to the rail both the conductor 2O and the onteiterniinal sleeve 217 and nielts at a slightly .lower teinilierature than the inner br: Zing; sleeve. rhis brazing strip both with this bond and the one first described may consist o t a brazing composition known in this art as silver solder. ln forming this bond the inner sleeve or blazing` sleeve and the enter sie or terminal sleeve Z1 inay be shaped up and separately applied to the terininal portion et the conductor 20, as illustra-ted in Figs. 1 and 17, or, it' desired, the tno concentric. sleeves may be either separately or simultaneously shaped np and siinnlta'i'ieonsly applied to the concluetor of the bend. lflonerer, for the salie of clearness. on Sheet 2 of the drawings have shor-:n these parts applied to the conductor of' the bon d by separate operations.

rllhis bond shown in Sheet 2 of the drawings, adapted to .be applied to a rail in 'ecisely the manner rst described, the dit- '.terent narts i'f'nni'ztioning in the saine Way that the corresponding partsl et the construction firstdescribed tnnction.

lll/lith the b nd shown both on Sheet 1 and Sheet et the drawiig's, the blazing strip 13 in one instance and Q53 in the other instanee is tas-tei ed in gosition by haring one end inserted beneath the enter or terminal sleere. lt is not essentiah however5 that this brazingjT strip be applied or attached in this manner but other ways ot fastening it in position may be employed it desired, suchv vided With a portion Which entirely Surrounds the conductor, and with another portion only partially surroimding the conductor, thereby leaving a 'fare oi' the latter exposed So that it may be braZed to the rail, Said portion of the Sleeve which partially surrounds the conductor adapted to be brazed thereto when the bond is; brazed to the rail.

l5. AS an article of manuincture7 a rail bond composed of a conductor and a terminal strip pressed thereon and thereby nonintimately attached thereto, a portion ot the stri p being` tolded around the conductor at a point adjacent that part thereof which ie to be braZed to the rail, and another portion oi the Strip partially Sin-rounding the condnctor whereby a tace ot the latter is exposed so that it may be brazed to the rail, Said Strip 'Forming' a. permanent part ot the bond and adapted to be brazed to the conductor iv ien the latter is brazcd to the rail.

16. As an article ot' manufacture, a rail bond consisting` f a conductor havin@ a tern'iinal portion and a flexible portion extending therefrom, and a terminal member forming` a permanent part oit the bond and pressed onto the conductor and thereby SupericiallfY attached to the latter, said member having a portion substantially entirely surroundingv the conductor adjacent the terminal portion thereof7 and havingv a portion adapted to bc brazed to said terminal portion and extending along one face thereof, the opposite face ot said terminal portion being' exposed whereby it may be brazed directly to the rail.

l?. As an article of manufacture, a rail bond comprisingv a flexible, stranded conductor having a terminal portion, a teri'ninal meniher toi-ming` a permanent part of the bond and having' a portion superficially or non-intimately Surrounding` the conductor Where it leaves the terminal portion, one tace ot the terminal port-ion of the Conductor being exposed so that it may be brazed to a rail. and said terminal member having' another portion superlicially or non-intimately overlying another 'face of the terminal portion of the conductor and adapted to be brazed to such face when the terminal portion ot the conductor is brazed to the rail.

In testimony ,vhereot l hereunto aix my signature.

LAWRENCE P. CRECELIUS, 

